Holothuroideans are the sea cucumbers. They are sausage-shaped and have fleshy bodies with the skeleton reduced to a few ossicles in the body wall. Tentacles surround their mouths and help them to eat, pushing food towards their mouths. They crawl or burrow into soft sediments using muscular movements of the body wall.
ADW: Class Holothuroidea
Photographs and information on the sea cucumbers from the Animal Diversity Web.
Images and brief information about this Chilean species (Dendrochirotida: Cucumariidae).
Cotton-Spinner (Holothuria forskali)
Whilst diving round the coasts of Britain, Jane Lilley observed this sea cucumber and its behavior.
Exercise from Invertebrate Anatomy OnLine covering the systematics, external and internal anatomy of this sea cucumber.
Rob Toonen's comments about the defense mechanisms of sea cucumbers.
Holothuria forskali: Black Sea Cucumber
Photographs and a description of this species.
Introduction, characteristics, phylogenetic relationships and fossil history of the sea cucumber, from the Tree of Life Web Project.
Wikipedia article on this class of marine animals, the sea cucumbers, with elongated bodies and leathery skin.
Holothuroidea - Sea Cucumbers
Overview, including characteristics, taxonomy, phylogenetic relationships, and fossil history.
Taxonomy, description and photograph of this sea cucumber.
Exercise from Invertebrate Anatomy OnLine covering the systematics, external and internal anatomy of this sea cucumber, with notes on Cucumaria.
Sea Cucumber: Holothuria pardalis
Research project by Ka Wai Hui on this species, including its classification, habitat, reproduction, nutrition, adaptations and use to humans.
Sea Cucumbers - Class Holothuroidea
Description and interesting facts.
Taxonomy and photograph of this shallow-water sea cucumber.
Last update:March 15, 2015 at 20:52:05 UTC